PNNL

Dr. Viviana Gervasio is a material scientist in the Radiological Materials group at Pacific Northwest National Laboratory (PNNL). She has experience in simulated nuclear waste glass composition and characterization. Viviana Gervasio attained her PhD in Biotechnologies from the University of Florence (Italy) and her Master of Science in Zoology from Miami University. Viviana joined PNNL in October 2014, participating in and managing large projects and providing technical support to the Department of Energy's (DOE’s) Office of River Protection (ORP) in the Hanford Site nuclear waste vitrification mission. She has published works related to simulated waste glass property-composition dependance. In her spare time, she enjoys traveling, reading, painting, and, most of all, spending time with her family.

• Doctor of Philosophy, Biotechnology, Università degli Studi di Firenze
• Master of Science, Zoology, Miami University
• Bachelor of Science, Animal Science, Università degli Studi di Firenze

• ASTM International Award of Appreciation

2024

• Lu X., Z.D. Weller, V. Gervasio, and J.D. Vienna. 2024. "Glass Design Using Machine Learning Property Models with Prediction Uncertainties: Nuclear Waste Glass Formulation." Journal of Non-crystalline Solids 631. PNNL-SA-193529. doi:10.1016/j.jnoncrysol.2024.122907
• Oshiro J.M., V. Gervasio, J. Crum, B.J. Riley, J. Reiser, M. Snyder, and D.R. Dixon, et al. 2024. "Glass Formulation and Lab-Scale Testing of Glasses Designed for In-Can Melter and In-Container Vitrification of High-Assay Low-Enriched Uranium Aqueous Polishing Raffinate Waste." Journal of Nuclear Materials 597, no. _:Art. No. 155102. PNNL-SA-193734. doi:10.1016/j.jnucmat.2024.155102

2023

• Gervasio V., C.E. Lonergan, J.D. Vienna, J.B. Lang, B.E. Westman, J. Reiser, and J.J. Neeway, et al. 2023. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 5 and Phase 6. PNNL-34331. Richland, WA: Pacific Northwest National Laboratory. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 5 and Phase 6

2022

• Heredia-Langner A., V. Gervasio, S.K. Cooley, C.E. Lonergan, D. Kim, A.A. Kruger, and J.D. Vienna. 2022. "Hanford Low-Activity Waste Glass Composition-Temperature-Melt Viscosity Relationships." International Journal of Applied Glass Science 13, no. 4:16580. PNNL-SA-166208. doi:10.1111/ijag.16580

2021

• Gervasio V., J.D. Vienna, J.B. Lang, B.E. Westman, S.E. Sannoh, R.L. Russell, and D. Kim, et al. 2021. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 4. PNNL-31556. Pacific Northwest National Laboratory, Richland, WA. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 4
• Russell R.L., B.P. McCarthy, S.K. Cooley, E. Cordova, S.E. Sannoh, V. Gervasio, and M.J. Schweiger, et al. 2021. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 2. PNNL-28838 Rev 2. Pacific Northwest National Laboratory, Richland, WA. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 2

2020

• Russell R.L., B.P. McCarthy, S.K. Cooley, G.F. Piepel, E. Cordova, S.E. Sannoh, and V. Gervasio, et al. 2020. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 2. PNNL-28838 Rev 1.0. Pacific Northwest National Laboratory, Richland, WA. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 2

2019

• Gervasio V., J.V. Crum, B.J. Riley, J.D. Vienna, J.L. George, B.A. Stanfill, and A.A. Kruger. 2019. Liquidus Temperature: Assessing Standard Glasses for Furnace Calibration. PNNL-29312. Pacific Northwest National Laboratory, Richland, WA. Liquidus Temperature: Assessing Standard Glasses for Furnace Calibration
• Lonergan C.E., K. Akinloye-Brown, J.A. Rice, V. Gervasio, N.L. Canfield, M.J. Schweiger, and J.D. Vienna. 2019. "Micron-sized spinel crystals in high level waste glass compositions: Determination of crystal size and crystal fraction." Journal of Nuclear Materials 514. PNNL-SA-134262. doi:10.1016/j.jnucmat.2018.11.039
• Russell R.L., B.P. McCarthy, S.K. Cooley, G.F. Piepel, E. Cordova, S.E. Sannoh, and V. Gervasio, et al. 2019. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 2. PNNL-28838. Pacific Northwest National Laboratory, Richland, WA. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 2
• Russell R.L., D. Kim, J.D. Vienna, V. Gervasio, C.H. Skidmore, B.J. Riley, and R.A. Peterson. 2019. Cold Crucible Vitrification of CST and Simulated Hanford Tank Waste. PNNL-28895. Pacific Northwest National Laboratory, Richland, WA.

2018

• Gervasio V., D. Kim, A.A. Kruger, C.E. Lonergan, J.D. Vienna, and B.J. Riley. 2018. Impacts of Leaching and Uncertainties on Projected Hanford Low-Activity Waste Glass Amounts. PNNL-28309. Pacific Northwest National Laboratory, Richland, WA. Impacts of Leaching and Uncertainties on Projected Hanford Low-Activity Waste Glass Amounts
• Gervasio V., J.D. Vienna, D. Kim, and A.A. Kruger. 2018. Impacts of Process and Prediction Uncertainties on Projected Hanford Waste Glass Amount. PNNL-26996; EWG-RPT-015, Rev 0.0. Pacific Northwest National Laboratory, Richland, WA. Impacts of Process and Prediction Uncertainties on Projected Hanford Waste Glass Amount

2017

• Matyas J., V. Gervasio, S.E. Sannoh, and A.A. Kruger. 2017. "Predictive Modeling of Crystal Accumulation in the High-Level Waste Glass Melters Processing Radioactive Waste." Journal of Nuclear Materials 495. PNNL-SA-125881. doi:10.1016/j.jnucmat.2017.08.034
• Russell R.L., T. Jin, B.P. McCarthy, L.P. Darnell, D.E. Rinehart, C.C. Bonham, and V. Gervasio, et al. 2017. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 1. PNNL-26630 Rev 0. Pacific Northwest National Laboratory, Richland, WA. Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 1
• Russell R.L., Y. Chou, B.P. McCarthy, L.P. Darnell, V. Gervasio, J.L. Mayer, and J.B. Lang, et al. 2017. Glass Compositions and Properties of Enhanced Waste Glass with High Alumina Content for High-Level Waste. PNNL-27138. Pacific Northwest National Laboratory Richland, WA. Glass Compositions and Properties of Enhanced Waste Glass with High Alumina Content for High-Level Waste

2016

• Vienna J.D., M.J. Schweiger, C.C. Bonham, J.B. Lang, B.P. McCarthy, Y.S. Chou, and S.K. Cooley, et al. 2016. "Development of High Alumina Glass Property Data for Hanford High-Level Waste Glass Models - 16231." In Waste Management 2016 (WM 2016): Education & Opportunity in Waste Management, March 6-10, 2016, Phoenix, AZ, 2, 994-1003. Phoenix, Arizona:WM Symposia. PNNL-SA-115610.